JP2014514995A - Winding device for winding the tube - Google Patents

Abstract

  The present invention relates to a winding device (1) and a method for winding a tube using the winding device. This device is configured to wind up the tube (5), is connected to the spindle (3) and is configured to rotate about the central axis (C), and the main reel (2) to rotate with the main reel. A tube holding ring (4) for taking in the leading portion of the tube, and a guide member (6) arranged at a distance (d2) from the main reel and guiding the tube to the winding device. The tube retaining ring is arranged outside at a position spaced from the main reel by a radial distance (d1) with respect to the central axis, and the guide member is an outer position (A) for guiding the tube to be wound up to the tube retaining ring. And an inner position (B) for guiding the tube to be wound to the main reel.

Description

Field of Invention

  The present invention relates to a winding device according to the characterizing portion of claim 1. The present invention also relates to a method for winding a tube according to the characterizing portion of claim 9 and the use of this method for cleaning a tube.

Background of the Invention and Prior Art

  The production of cables, wires and tubes is preferably carried out in a series of steps, in which case the cables, wires or tubes can be processed before or during winding. The processing operation involves covering the cable with a resin jacket or annealing the tube. In order to maintain quality and prevent defects, it is important that processing operations be performed without interruption. Furthermore, if the first head length of cable, wire or tube is withdrawn from the processing equipment and can reach normal operating conditions in a short time, the tube manufacturing cost per meter will be low. . Often, the initial head portion of the cable, wire or tube is defective, and the wound tube may have to be removed before shipping.

  Often, after a cable, wire or tube (hereinafter referred to as tube) processing operation, a winding or winding process is performed. The tube may be wound by winding the tube around a rotating main reel or spool with a winding device. The tube can be guided to the winding device in various ways. For example, a guide arm or a guide member that is at the end of the production line and is separated from the main reel in the vicinity of the winding device is used. The guide member guides the tube from the production line in the main reel direction.

  The leading part of the tube is often a defective tube and must be removed from the main part of the tube that is shipped to the customer, the finished product. The leading portion of the tube may be separated by winding the leading defective portion onto the main reel and then inserting it into the reel or spool flange. The tube is preferably wound around a flange so that the winding operation can be continued without interruption of the manufacturing process. At the end or midway of the winding process, the leading portion of the tube may be removed by cutting, for example.

  Depending on the application, it may be necessary to clean the tube at the end of the work process. In some countries, for example, hollow tubes used in air conditioning systems, for example, require that substantially no oily residue remain on the inside. In this tube cleaning, the inside of the tube is purified with a gas, preferably a high-temperature gas such as nitrogen, during the tube processing step and / or the winding step. This may be done by attaching a gas tube to the end of the treated tube. In that case, the gas can flow through the tube during processing and winding of the tube.

  The wound tube can be several kilometers long and weigh hundreds of kilograms. In order to purify such long tubes with gas, the gas must be at a substantially high pressure. If the tube is not very thin, a relatively high gas pressure can be used. However, if the tube diameter decreases, the tube wall may burst if the gas pressure becomes too high. This problem can be solved by shortening the length of the tube. For example, two or more tube coils may be made, in which case the length and weight of each coil is, for example, half or one third of the original tube.

  Two coils may be rolled up and stacked before shipment to the customer. The first tube may be wound in a conventional manner so that the defective portion of the tube, ie the leading defective portion, is wound on the lower part of the flange of the main reel of the winder to separate the defective portion. it can. The remaining tube can then be wound on the top of the flange. A pressurized gas can be sent to the first tube using a connecting member. At the end of the first winding step, the second tube may be placed on the first coil for processing. When the leading defective part of the second coil reaches the winding device, it must be taken out and separated from the remaining part of the coil. Therefore, a gas pipe may be attached to the second tube, and then the coil can be wound on the wound first tube. The leading portion of the second tube is located between the first coil and the second coil. The leading defect must be removed before shipping. The flange cannot be used here because the flange must also be removed or removed before shipping. Lifting the second heavy take-up tube to remove the leading portion and / or flange is not a practical choice. The leading part of the second tube must be separated before the main part of the second tube is wound on the first coil. This separation needs to be done during the continuous working process of the second tube.

Conventional technology

  The prior art describes several devices that can be used to separate the leading portion of the tube from the main portion of the tube during the winding of the tube.

  U.S. Pat. No. 3,625,448 describes a process for winding a cable, according to which the leading portion of the cable guides the defective portion to another reel that is coaxial with the main reel. Separate from the main parts. First, the cable is attached to the inside of the main reel from the insertion port, and then, this is wound on another reel until a cable having no defect reaches the work process. Next, guide means including a small hole for cable penetration of another reel bends the cable and guides it to the main reel. In this process, the cable needs to be flexible enough to bend to nearly 180 degrees. The wound cable is first removed by removing the main reel. As a result, the leading portion of the cable can be removed from another reel.

  British Patent No. 902712 also describes a wire winding process and mechanism, which separates the leading portion of the wire from the main portion of the wire by winding the leading portion of the wire on another coaxial reel. Yes. The wire is attached to another reel. When a suitable wire arrives, the wire is guided to the flange of the main reel by guide means provided on the outside of the device for moving the wire in the axial direction from another reel to the main reel. A pin provided on the separating flange is used to “capture” the wire on the flange, after which the wire is wound onto the main reel. Again, the wire is first removed by removing the main reel. Thereby, the leading portion of the wire can be removed from the other reel.

  U.S. Pat. No. 3,620,482 describes a device having separate reels coaxially mounted on a main reel, whereby each reel is separated by a flange. The wire is attached to a separate reel and guided by a strap attached to a cross feed mechanism. This device also uses a flange. The guide means turns the wire back from the winding device to the lateral feed mechanism before winding the wire around the reel. The wire needs to be flexible enough to bend to nearly 180 degrees.

  These devices are not suitable for separating the leading portion of the second tube during the process of winding the second tube and stacking it onto the first tube. As mentioned above, the use of flanges is preferably avoided. With such a configuration, it seems almost impossible to attach the gas pipe to the tube. Also, the winding and stacking of tubes according to the present invention is preferably performed using a vertically arranged device, whereas this prior art device is sideways. Tubes may not always be bendable.

  The object of the present invention is to develop the following winding device and method. In other words, it is possible to easily separate the head portion from the remaining portion of the tube by winding up the defective portion at the head of the tube and separating it from the remaining portion of the tube during the work process. Can be done at the same time.

  Another object is to provide a system that can be constructed relatively simply by adjusting an existing winding device.

  Another object is to provide an apparatus that does not require the tube to be attached to the reel before winding, thereby eliminating the need for an insertion slot, pin, and lateral feed mechanism for winding the tube onto the reel.

  Furthermore, it aims at providing the apparatus which can divide and remove the head part of a tube easily.

  As a further object, a device is provided in which a connecting member is attached to the tube so that gas can be passed through the tube during the tube processing and winding process.

  These objects are achieved by a device defined at the beginning and having the following characteristics: That is, in this apparatus, a tube holding ring is disposed on the outer side at a radial distance from the main reel with respect to the central axis, and the guide member has an outer position for guiding the tube to be wound to the tube holding ring, and a winding position. It is characterized in that it is movable between an inner position for guiding the tube to be taken to the main reel. The tube retaining ring can be attached to an existing winding device. Also, the ring structure is relatively simple.

  When the tube reaches the tube retaining ring, the connecting member can be attached to the end of the tube. After that, when winding is started and a tube having no defect arrives, the tube can be wound around the main reel only by the guide member moving the tube to the inner position.

  In one embodiment, an annular gap is provided between the main reel and the tube retaining ring. Such an annular space allows the tube to be easily transferred from the tube holding ring to the main reel.

  In another embodiment, a moving member is used to move the guide member between an outer position and an inner position. Such a moving member may be disposed outside the winding device. The guide member can be easily moved by the moving member. This movement may be automated using computer-controlled processing or a programmable controller.

  In a further embodiment, the apparatus comprises a connecting member configured to attach to the end of the tube to be wound. In one embodiment, the connecting member is attached to the gas reservoir. The connecting member provides a flexible means for connecting the pressurized gas reservoir to the tube. In another embodiment, the connecting member can be attached to the end of the tube to pass gas from the reservoir through the tube. The connecting member may rotate when the tube is wound or may not rotate. In another embodiment, the connecting member is rotatably attached to the end of the tube.

  In another embodiment, the central axis extends vertically.

  The above object is also achieved by a method characterized in that it includes the following steps as defined at the beginning. That is, in this method, the main reel and the tube holding ring are rotated about the central axis, the tube is accommodated in the tube holding ring from the guide member, the leading portion of the tube is wound up in the tube holding ring, When a tube without defects arrives from the guide member, the position of the guide member relative to the central axis is shifted from the outer position to the inner position, and the tube is wound on the main reel. The method can be used in continuous processing. It is not necessary to interrupt processing. The tube need not be attached to the insertion port or pin, nor does it need to bend the tube and separate the leading portion of the tube from the other portions of the tube.

  In one embodiment, the connecting member is attached to the end of the tube before the leading portion of the tube is wrapped around the tube retaining ring. The process may be interrupted or slowed down before the main part of the tube is wound up to separate the defective tube, ie the leading part of the tube.

  In another embodiment, the leading portion of the tube is wound after the second tube (5) has been wound. Packages containing two or more stacked coils can be shipped to customers.

  In a further embodiment, gas is passed through the tube.

  In yet another embodiment, gas is passed through the tube throughout the entire winding process. Various gases can be used to clean the tube and remove petroleum residues from the inside surface of the tube. Petroleum residues can be effectively removed using nitrogen gas. In another embodiment, the gas is nitrogen.

  A tube such as a copper tube may be annealed before winding. Since the head of such a tube is hard, it must be separated from other parts that have been annealed and softened. In one embodiment, the unannealed tube is wound on a tube retaining ring and the annealed tube is wound on a main reel.

  The method according to the invention is particularly useful for the treatment and winding of tubes with a diameter of less than 15 mm. Such tube rupture can be prevented by shortening the winding length and using the method according to the invention.

  In another embodiment, the tube diameter is less than 15 mm.

  This new method is suitable for winding two or more coils on top of each other because the defective portion at the head of the tube is not disposed between the overlapping coils.

  In another embodiment, the tube is wound on the first winding tube.

  The invention also relates to the use of the method described above for tube cleaning.

The present invention will now be described in more detail with reference to the accompanying drawings through the description of various embodiments.
The winding device and the tube retaining ring are shown. 3 shows the top, side and three-dimensional appearance of the tube retaining ring. The winding apparatus and guide member at the time of winding a tube around a tube holding ring are shown. The winding device in a state where the guide member moves from position A to position B is shown. The winding device is shown in a state where the guide member is at position B and winding onto the main reel starts.

Detailed description

  1 and 3 show the device 1, in which the central axis C extends vertically. A main reel 2 is connected to the spindle 3 of the apparatus 1. The main reel 2 is attached to the sundle 3 by attachment means (not shown), and is configured to rotate about the central axis C. The central axis C may extend in another direction.

  As shown in FIG. 3, a tube holding ring 4 is disposed outside the central axis C at a position spaced from the main reel 2 by a radial distance d1. The tube holding ring 4 is configured to rotate together with the main reel 2. FIG. 2 shows the upper surface (A), side surface (B), and three-dimensional appearance of the tube retaining ring 4. The tube holding ring 4 can take in the leading portion of the tube 5 in the space above the tube holding ring 4. There is an annular gap P shown in FIG. 3 between the main reel 2 and the tube holding ring 4, which provides the space necessary to move the tube 5 from the tube holding ring 4 to the main reel 2. There may be an inner ring 10 to hold the tube 5 to the tube holding ring 4. A semicircular portion 13 may be provided on the upper part of the winding device 1, which is a part of the structure 12 of the device 1, as shown in FIG. 5, from the outer position A to the inner position B of the tube 5. To help move. The tube holding ring 4 may be configured to be movable up and down along the central axis C. As this role, the hydraulic lifting means 11 may be used. Thus, the tube holding ring 4 can move along the central axis C as the winding height of the tube 5 extends along the central axis C during winding.

  The guide member 6 is disposed at a distance d2 from the main reel 2 with respect to the central axis C. The guide member 6 is configured to guide the tube 5 to the device 1. The guide member 6 is movable between an outer position A for guiding the tube 5 to be wound to the tube holding ring 4 and an inner position B for guiding the tube 5 to be wound to the main reel 2.

  The guide member 6 includes a moving member 7 (conceptually shown in FIG. 3), which is used to move the guide member 6 between the outer position A and the inner position B. The moving member 7 may be any means as long as it is used for moving the guide member 6, and may be a hydraulic or pneumatic cylinder, for example.

  When a gas such as nitrogen gas is passed through the tube 5, a connection between the tube 5 and the pressurized gas reservoir 8 must be established. This connection can be realized using the connection member 9. The connecting member 9 may be any means as long as it connects the end of the tube 5 to the reservoir 8, and may be a clasp attached to a pipe, for example. Preferably, the connecting member 9 has flexibility and can be rotated together with the tube 5 when the tube 5 is wound.

  The invention also relates to a method for winding the tube 5. An operation step (not shown) for annealing the tube 5 may start by placing the tube 5 in a squirrel-cage container. First, the tube 5 from the squirrel-shaped container is passed between the pinch rollers that are a part of the spreading device, and then introduced into the annealing device. In the annealing apparatus, the tube 5 is heated using an induction coil to soften the tube 5. After annealing, the tube 5 is sent to the storage area, the tube 5 is cooled with water, and then air-dried. After passing through the tension device, the tube 5 is sent to the winding device 1 by the guide member 6.

  When purifying the tube 5 with gas, the end of the tube 5 may be connected to the gas reservoir 8 using the connecting member 9. The gas reservoir 8 is preferably a stationary type, and is disposed at a certain distance from the winding device 1. The connecting member 9 may be attached to the end of the tube before winding the leading portion of the tube 5. The gas flows in the opposite direction of the work process and contaminants such as petroleum residues will evaporate from the other end of the tube 5. The gas may be passed through the tube 5 over the entire winding process.

  The leading portion of the first tube (coil) 5 includes a hard unannealed tube 5 and can be separated by winding the leading portion below a flange (not shown). When the soft tube 5 reaches the winding device 1, the tube 5 is wound around the flange. When the first tube 5 is wound up, the second hard unannealed tube 5 reaches the winding device. The connecting member 9 may be attached to the tube 5. The guide member 6 is initially in the outer position A and guides the tube 5 into the tube holding ring 4. As a result, the leading portion of the tube 5 is wound into the tube holding ring 4. The length of the top portion of the tube 5 may be about 20-30 m. When the soft annealing tube 5 reaches the winding device 1, the guide member 6 moves from the outer position A to the inner position B. For this purpose, for example, a computer program for operating a pneumatic cylinder that pushes the guide member 6 to the inner position B may be used. The operation time point may be set in advance, but may be determined by the number of rotations of the spindle 3, for example. Further, the movement angle of the guide member 6 with respect to the central axis C may be set in advance.

  Thereby, the soft annealing tube 5 can be wound on the first coil. When the second tube 5 is wound up, the connecting member 9 is removed, and the stacked and wound tube 5 is taken out from the winding device 1 and can be shipped to the customer.

By using the winding device 1 as described above, the method may include the following steps. That is,
Rotate the main reel 2 and the tube holding ring 4 around the central axis C,
Accommodating the tube 5 from the guide member 6 into the tube retaining ring 4;
Wind the top part of the tube 5 around the tube holding ring 4,
When the tube 5 having no defect arrives from the guide member 6, the position of the guide member 6 with respect to the central axis C is moved from the outer position A to the inner position B.
The tube 5 is wound around the main reel 2.

  The good tube 5 having no defect is defined as the tube 5 as a main portion having no defect at the head portion of the tube 5. In other words, the tube 5 having no defect is a portion shipped to the customer of the tube 5.

  The connecting member 9 may be removed from the tube 5 after the leading portion of the tube 5 is wound around the tube holding ring 4, but this is not essential. The head part of the tube 5 may be separated from the remaining part of the tube 5 by stopping the production line and cutting the tube 5, for example. Then, after attaching the connecting member 9 to the tube 5 again, the annealed (good) tube 5 may be wound around the main reel 2.

  The method according to the invention is particularly suitable for thin tubes 5, for example copper tubes 5 having a diameter of less than 20 mm, or less than 15 mm, or less than 10 mm, or less than 8 mm. The diameter of the tube 5 may be 2 to 20 mm. The wall thickness of the tube 5 may be around 0.10 to 1.0 mm, or less than 0.7 mm, or less than 0.5 mm, or less than 0.3 mm.

  The length and weight of the tube 5 are determined by the material of the tube and the diameter and thickness of the tube 5 to be wound. For example, in the case of the tube 5 having a diameter of 2 to 20 mm or less than 15 mm, the length of the copper tube 5 may be 2 to 50 km, or less than 10 km, or less than 7 km, and the weight may be from 100 to 1000 kg. Or less than 500 kg, or less than 400 kg.

The method can advantageously be used for cleaning the tube 5, in particular for removing petroleum residues from the tube 5. The petroleum residue contained in the tube 5 wound up and purified as described above is less than 0.2 or 0.1 mg per meter.

In another embodiment, the top portion of the tube is cut from winding the second tube. Packages containing two or more stacked coils can be shipped to customers.

Claims (18)

  A main reel (2) connected to the spindle (3) of the winding device (1) and configured to be rotatable about a central axis (C), and a tube (5) that rotates together with the main reel (2). A tube holding ring (4) configured to take in a leading portion of the main reel (2) and a distance (d2) from the main reel (2) to the central axis (C), the tube (5) In the winding device (1) configured to wind the tube (5) around the reel (2), the guide member (6) configured to guide the winding device (1). The holding ring (4) is disposed outside at a position spaced from the main reel (2) in the radial direction (d1) with respect to the central axis (C), and the guide member (6) Between the outer position (A) for guiding the tube (5) to be taken to the tube retaining ring (4) and the inner position (B) for guiding the tube (5) to be taken up to the main reel (2). Is movable Take-up device and said and.   The winding device (1) according to claim 1, wherein there is an annular gap (P) between the main reel (2) and the tube holding ring (4).   The winding device (1) according to claim 1 or 2, wherein the guide member (6) is moved between an outer position and an inner position (A, B) using a moving member (7). Winding device.   4. Winding device (1) according to any of claims 1 to 3, wherein the device (1) is further connected to an end of the tube (5) to be wound up. A winding device comprising:   5. The winding device (1) according to claim 4, wherein the connecting member (9) is attached to a gas reservoir (8).   The winding device (1) according to claim 5, wherein the connecting member (9) is attached to an end of the tube (5), and gas is passed from the reservoir (8) to the tube (5). A winding device characterized in that   The winding device (1) according to any one of claims 4 to 6, wherein the connecting member (9) is rotatably attached to an end of the tube (5).   The winding device (1) according to any one of claims 1 to 7, wherein the central axis (C) extends vertically. A method for winding a tube (5) using the winding device (1) according to any of claims 1 to 8, wherein the method comprises:
-Rotating the main reel (2) and the tube retaining ring (4) around the central axis (C);
-Receiving the tube (5) from the guide member (6) into the tube holding ring (4);
-Winding up the leading portion of the tube (5) in the tube retaining ring (4);
The step of moving the position of the guide member (6) relative to the central axis (C) from the outer position (A) to the inner position (B) when a tube (5) having no defect arrives from the guide member (6); ,
A method of winding the tube, the method including winding the tube (5) onto the main reel (2).   The method according to claim 9, wherein the connecting member (9) is attached to the end of the tube (5) before winding the leading portion of the tube (5) into the tube holding ring (4). Feature method.   11. A method according to claim 9 or 10, characterized in that the leading portion of the tube (5) is cut after winding the second tube (5).   12. Method according to claim 10 or 11, characterized in that gas is passed through the tube (5).   12. Method according to claim 10 or 11, characterized in that gas is passed through the tube (5) over the entire winding process.   14. A method according to claim 12 and 13, wherein the gas is nitrogen.   The method according to any one of claims 9 to 14, characterized in that the unannealed tube (5) is wound around the tube retaining ring, and the annealed tube (5) is wound around the main reel (2). how to.   16. A method according to any one of claims 9 to 15, characterized in that the diameter of the tube (5) is less than 15 mm.   17. A method according to any one of claims 9 to 16, characterized in that the tube (5) is wound on a previously wound tube (5). Use of the method according to any of claims 9 to 17 for cleaning a tube (5).

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